Specifications
The document outlines the specifications for the PIERAMUR® wall cladding system, which serves as a sound protection barrier and is suitable for low to medium height retention. Each element weighs 14 kg, with 38 elements required per square meter. The maximum height of the structure is 2.10 meters. The color of the elements varies by region. The system is designed for applications such as protection of dikes, ditches, and riverbanks.

Procedures
The implementation process involves excavating a 600mm wide trench to firm ground, laying a 100mm thick concrete base, and placing a 400mm wide layer of mesh reinforcement. The first course of blocks is laid and checked for level and plumb, followed by subsequent courses laid in stretcher bond. Backfilling is done with low fines material, compacted in layers of 100 to 200mm. A perforated land drain is introduced at the heel of the wall.

Standards and Recommendations
The land for the structure must be verified by an Approved Geotechnical Engineer. The responsibility for the quality of foundation soil, slope faces, backfill, and installation lies with the Employer or Contractor, not BETOCONCEPT®. The document provides guidelines for allowable heights based on the angle of internal friction of the ground (ϕ) and the angle of the slope upstream (β).

Key Parameters
- Maximum height: 2.10 m
- Weight of single element: 14 kg
- Number of elements per m²: 38
- Palette weight: 1568 kg
- Concrete foundation and reinforcement details provided
- Allowable heights vary based on soil quality and slope angle

Limitations
The document specifies that the trench should be free from groundwater and that the backfill material should be free from clay. The implementation process must adhere to local regulations regarding drainage systems.